On 5/5/21 2:08 AM, Dave Jordan wrote:

notes = new Fl_Text_Editor(x, y, w, h);
[..]
notes->wrap_mode(Fl_Text_Display::WRAP_AT_BOUNDS, 0);
Fl_Text_Editor::kf_ignore(notes, FL_Tab);    // compiles but does nothing as far as i can see. I am using 1.3.5 ABI 10300)

    kf_ignore() is a nop destination for keys to be ignored, it does not do anything or create mappings.
    Its use is to map keys to be ignored to it, so that it acts as a nop (no operation), such as in the default key mapping table:

// These are the default key bindings every widget should start with
[..]
  { FL_Escape,    FL_TEXT_EDITOR_ANY_STATE, Fl_Text_Editor::kf_ignore     },    // <<-- NOTE ITS USE HERE TO IGNORE Fl_Escape
  { FL_Enter,     FL_TEXT_EDITOR_ANY_STATE, Fl_Text_Editor::kf_enter      },
  { FL_KP_Enter,  FL_TEXT_EDITOR_ANY_STATE, Fl_Text_Editor::kf_enter      },
 
    To use it you'd use add_key_binding(), e.g.

    notes->add_key_binding(FL_Tab, 0, Fl_Text_Editor::kf_ignore);

void Fl_Text_Editor::tab_nav(int val) {
  if ( val )
    add_key_binding(FL_Tab, 0, kf_ignore);
  else
    remove_key_binding(FL_Tab, 0);
}